# Thermo Scientific Orion Star A214 pH/ISE/mV/Temperature Benchtop meter and Ammonia ISE kit; meter features a large, backlit graphic LCD display and AUTO-READ; includes universal power adapter# Includes ROSS Ultra Glass Refillable pH Electrode, a stainless steel ATC probe, a high-performance ammonia gas sensing electrode, and an automatic stirrer and paddle# Comes with 475mL each of ammonia standard (1000ppm as Nitrogen (N)), pH adjusting low level ISA for ammonia electrode, and ISE special reagent storage solution for ammonia electrode# Non-volatile memory holds up to 2000 data points with time and date stamp; electrode arm and newly-designed probe holder make it easier to maintain and place probes into samples